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EtherCATExpansion Module


  • 8 Registration inputs repeatable to 100nS per module
  • Drive parameters setup from the controller
  • Position Set point update 0.125mS
  • RJ45 Connector
  • 4 LED status indicators


Module range

P876 EtherCAT Expansion ModuleEtherCAT sets new standards for real-time performance and topology flexibility, whilst meeting or under cutting other fieldbus cost levels.

P876 EtherCAT master module enables the MC664 Motion Coordinator to enter a very exclusive club offering an independent, standalone EtherCAT master for motion control; this arrangement enables up to 64 axes of any manufacturers' EtherCAT-compatible drives and motors - or other devices - to be controlled. The module comes with 2 axes enabled. Further axes can be enabled with ‘Feature Enable Codes’.

Every axis can be programmed to move using linear, circular or helical interpolation, electronic cams and gearboxes. Features include support for merging multiple moves that are typically generated by CAD/CAM software, plus support is provided for continuously rotating machinery. EtherCAT also offers the major advantage of high-precision device synchronisation.




Trio support a growing number of devices and continue to add to the list. If your device is not on the list, please contact Trio.

Devices Supported (For Preferred Drives Partners, click logos below)

Company Drive Encoder I/O Device
AMC AMC, DP - DZ    
Axor MACK 300    
Delta ASDA A2 E    
Fastech Ezi-SERVOII-EtherCAT    
Hiwin D2 and D1-N Series    

MAC motor, QuickStep

LS Mecapion L7N    
Moog MSD, MSD Compact, Animatics    
Panasonic MINAS A5   NW Sensor

Arnold Mueller GmbH & Co. KG IC, KW (-R03)    
Applied Motion Products SS05-EC-D    
Bachmann     Bachmann slv
Balluff     Balluff BTL7
Baumer BM4-O-ECT-01-01, BMAxx Encoder 2, 4 & 10byte  
Baumer Thalheim   ATD2, ATD4 & POE  
Bernecker + Rainer Industrie Elektronik Ges.m.b.H.      
Baumueller bmaXX 4400    
Beckhoff AX2000 EP5101 EL6752, EL1088
Bonfiglioli Vectron GmbH      
Bosch Rexroth AG      
Brooks Instrument B.V.      
Brunner Elektronik AG      
Burster praezisionsmesstechnik      
Comet Technologies USA      
Control Techniques Digitax, Unidrive M, Unidrive SP    
Copley Drives Xenus+, Accelnet+    
Danfoss GmbH      
Deutshmann     Unigate IC
Dunkermotoren BGxx    
Eltromat     ELTROMAT RSH
Elmo ELMO Drive    
ESD electronic system design gmb      
ESR Pollmeier Midi Drive, Trio Drive    
ESItron ESImotor    
Estun ProNet    
Festo     CPX-FB38
Gefran SPA      
Grossenbacher     GESYS MEC
HIGEN Motor Co., Ltd.      
Hilscher     NETX_IO
IAI ACON (does not support cyclic mode)    
Inficon AG      
Infranor XtraplusPak    
Imficon     INFICON PG
Jenaer Antriebstechnik GmbH      
Jenny Science Xenax    
KEB KEB 1648F5    
Kuebler MT-5868 Encoder    
Kuhnke     694_400
Kollmorgen S700    
Kollmorgen / Danaher AKD    
KUNBUS GmbH      
Lenze i700 & 8400   IOSystem 1000
LinMot E1250-EC    
Lika Electronic srl      
LTi Drives ServoOne, ServoOne Junior    
Maxon Motor EPOS3, MAXPOS    
Metronix ARS2000    
Mitsubishi MR_J3_A    
MKS Intruments TEMPO VALVE    
Moog  MSD, MSD Compact, Animatics    
MOTEC Servo      
MURR Elektronik     IMPACT 20, IMPACT 67
MTS Systems Corp      
Nanotec Electronics N5    
National Instruments     9144
Omron MX2 inverter, G5 Servo GXEC0211, GXEC0241 GRT-ECT I/O
Parker Hannifin      
Phase Motor Control AxM-II Series    
Phoenix Contact      
RS Automation      
RTA Plus ET    
Renesas Electronics Corp.      
Sanyo Denki RS2    
Schneider Electric LXM32M    
Servotronix Motion Control Ltd.      
Sick     Inspector
Shanghai AMP&MOONS' Automation Co.,Ltd SS10-EC-D
SMC     EX260, EX600
Stober Posidrive    
TDK-Lambda Americas Inc.      
Texas Instruments Incorporated      
TR-Electronic   Linear and rotary encoders  
TRINAMIC Motion Control GmbH & Co. KG      
TRSystems GmbH      
Tsino-Dynatron Electrical Technology      
Vacon Plc      
VIPA     053
WAGO     750-354
Watlow Electric Manufacturing      
Weidmuller     URemote IO
Wenglor Sensor     OCP, ZAC50
Yaskawa Sigma V    


If your device is not yet supported, please contact Trio.

Network EtherCAT
Network Speed 100Mbps
Topology Chain
Max Slaves per Interface 64
Max Interfaces per MC664 7
Max Axes per MC664 64
Cable STP Cat 5-e or Better
Bus to MC664 32 Bit
Registration Inputs 8 x 24V Inputs
Optically Isolated registration Inputs Y
Map Any I/O to Any Axis Y
Axis Feature Enable Codes P701, P702, P704, P708, P716, P732
RoHs Compliant

EtherCAT logo  Specification

Speed 100Mbps
Physical Layer 100BASE-TX full duplex (IEEE 802.3)
Cable Shielded Twisted Pair (TIA/EIA-568B CAT5e)
Topology Line, tree or star (1)
Isolation Pulse transformer with common-mode choke
Connector RJ45
Cable Length 100m max between nodes
Cyclic period 250µsec (MC664), 500 µsec, 1000 µsec or 2000 µsec
Synchronisation Distributed Clocks technology.  Jitter < 1 µsec
Protocol CoE, SoE (2)
Number of Axes 32 (MC4N)  64 (MC464+P876) 128 (MC664)
Number of Nodes 128 slave nodes maximum
Motion modes Cyclic Synchronous Position, Cyclic Synchronous Velocity, Cyclic Synchronous Torque
Parameter transfer CoE Object read/write.  SoE IDN read/write
Input/Output Up to 1024 input bits and 1024 output bits

(1) Tree and star require the use of EtherCAT switches.

(2) CanOpen application protocol over EtherCAT. (CoE)
Servo drive profile according to IEC 61491 over EtherCAT. (SoE)


Data Sheet  
View Application Notes Technical notes
Quick Start Guide Simple set up guide (covers all expansion modules)

Package Drawings

Drawings are available in the following formats: DXF, IGES, DWG, STEP and SolidWorks.
These files are included in the Zip file below.
Download Zip file  


The Technical Reference Manual can be downloaded in full or as separate sections. All in PDF format
Expansion Modules (chapter 3) (1.9MB)